Revealing mistake: During the dinner, Dennis is addressing his sister. As she comes over by him, look at his left sleeve. It appears to be matted in, as it has a definite line at the edge of the fabric, where all other edges are softer. Then as Eldona sits the plate down, you can see a flutter between the images of Dennis' arm and the plate. Then, as Eldona turns around, you can see her dress through the gap between Dennis' arm and the plate. (00:36:30)
Revealing mistake: When the eyes are watching the couple in the room from the painting, the eyes look like they are animated eyes matted into the shot, because they are not vertically steady in the shot. (00:46:55)
Suggested correction: She chose a more random firing pattern as the targets got further away. Duh.
